I'm afraid (as earlier posted), I take a harsher perspective than most here....

I was first involved with CCs in 1967, as the bank I worked for took on MC, and I was involved in "signing up" merchants. Perhaps the experience made me "ornery" when it comes to the potential avenues for fraud and abuse (by cardholders, merchants, employee-thieves, etc.).

When you've been "cheated", both societal and legal remedies involve the recovery of not just the amount out of which you been bamboozled, but the entire transaction (and in some states, treble damages). For those who claim that a cheated customer should not get the cost of the entire meal or all the drinks back on the grounds that food and beverage have been consumed and can't be returned, so what? The traditional "rules" established by precedent apply; and the dealer caught dealing from the bottom of the deck or holding aces in his sleeve doesn't just forfeit the pot, but fortune, limb and life....(and certainly local livelihood). If the restaurant discovers the bad act was perpetrated by a waitperson, let it recoup its loss, the entire check, from the scurvy blackguard.

Meanwhile, I want ALL my money back by rescinding the entire transaction through the CC carrier.

The massive growth in the number of folks who dine in restaurants and the "awe" in which so many tend to treat well known (and even "chain") joints which commit gross transgressions in the kitchen and at the cash register shocks me. Our ancestors, at least those of whom could afford a meal in any cafe better than "roadside" would have not hesitated to refuse to pay for unsatisfactory food or service, just as they would have refused to pay for a bed infested with bedbugs or a lack of hot water for a paid bath. Were it the faro dealer who cheated, he would have gotten no more than his poke picked clean, a severe thrashing, and being thrown into the mud of the street (better than being shot down at the table, marked cards still in his hand!).